Title :
Energy harvesting in an OSTBC based amplify-and-forward MIMO relay system
Author :
Chalise, Batu K. ; Zhang, Yimin D. ; Amin, Moeness G.
Author_Institution :
Center for Adv. Commun., Villanova Univ., Lancaster, PA, USA
Abstract :
This paper investigates performance limits of a two-hop multi-antenna amplify-and-forward (AF) relay system in the presence of a multi-antenna energy harvesting receiver. The source and relay nodes of the two-hop AF system employ orthogonal space-time block codes for data transmission. We derive joint optimal source and relay precoders to achieve different tradeoffs between the energy transfer capability and the information rate, which are characterized by the boundary of the so-called rate-energy (R-E) region. Numerical results demonstrate the effect of different parameters on the boundary of the R-E region.
Keywords :
MIMO communication; amplify and forward communication; antenna arrays; energy harvesting; orthogonal codes; radio receivers; radiofrequency power transmission; receiving antennas; space-time block codes; telecommunication power supplies; OSTBC; amplify and forward MIMO relay system; data transmission; energy transfer; joint optimal source; multiantenna energy harvesting receiver; orthogonal space time block codes; rate-energy region; relay precoder; two hop multi antenna amplify and forward relay system; Energy harvesting; Information rates; MIMO; Receivers; Relays; Wireless communication; Wireless sensor networks; Energy harvesting; MIMO relay; OSTBC; information and power transfer;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-0045-2
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2012.6288596
